C# TCP服务端可以接收其他语言或平台发送的TCP消息

最新推荐文章于 2021-11-30 16:59:01 发布

原创最新推荐文章于 2021-11-30 16:59:01 发布 · 1.6k 阅读

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CC 4.0 BY-SA版权

文章标签：

#tcp #c# #语言 #平台 #stream #server

本文介绍了一个使用TCP协议实现客户端和服务器通信的简单程序，通过创建TCP监听器并接受客户端连接来接收和发送数据。

class Program
    {
        public static void Main()
        {
            TcpListener server = null;
            try
            {
                // Set the TcpListener on port 13000.
                Int32 port = 8000;
                IPAddress localAddr = IPAddress.Any;

                // TcpListener server = new TcpListener(port);
                server = new TcpListener(localAddr, port);

                // Start listening for client requests.
                server.Start();

                // Buffer for reading data
                Byte[] bytes = new Byte[4096];
                String data = null;

                // Enter the listening loop.
                while (true)
                {
                    Console.Write("Waiting for a connection... ");

                    // Perform a blocking call to accept requests.
                    // You could also user server.AcceptSocket() here.
                    TcpClient client = server.AcceptTcpClient();
                    Console.WriteLine("Connected!");

                    data = null;

                    // Get a stream object for reading and writing
                    NetworkStream stream = client.GetStream();

                    int i;

                    // Loop to receive all the data sent by the client.
                    while ((i = stream.Read(bytes, 0, bytes.Length)) != 0)
                    {
                        // Translate data bytes to a ASCII string.
                        data = System.Text.Encoding.ASCII.GetString(bytes, 0, i);
                        Console.WriteLine("Received: {0}", data);

                        // Process the data sent by the client.
                        data = data.ToUpper();

                        byte[] msg = System.Text.Encoding.ASCII.GetBytes(data);

                        // Send back a response.
                        stream.Write(msg, 0, msg.Length);
                        Console.WriteLine("Sent: {0}", data);
                    }

                    // Shutdown and end connection
                    client.Close();
                }
            }
            catch (SocketException e)
            {
                Console.WriteLine("SocketException: {0}", e);
            }
            finally
            {
                // Stop listening for new clients.
                server.Stop();
            }


            Console.WriteLine("\nHit enter to continue...");
            Console.Read();
        }
    }